KVM: Dynamically allocate vcpus
This patch converts the vcpus array in "struct kvm" to a pointer array, and changes the "vcpu_create" and "vcpu_setup" hooks into one "vcpu_create" call which does the allocation and initialization of the vcpu (calling back into the kvm_vcpu_init core helper). Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Avi Kivity <avi@qumranet.com>
This commit is contained in:
Rusty Russell
Avi Kivity
Родитель
a2fa3e9f52
Коммит
fb3f0f51d9
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@ -300,10 +300,8 @@ void kvm_io_bus_register_dev(struct kvm_io_bus *bus,
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struct kvm_io_device *dev);
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struct kvm_vcpu {
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int valid;
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struct kvm *kvm;
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int vcpu_id;
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void *_priv;
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struct mutex mutex;
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int cpu;
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u64 host_tsc;
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@ -404,8 +402,7 @@ struct kvm {
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struct list_head active_mmu_pages;
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int n_free_mmu_pages;
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struct hlist_head mmu_page_hash[KVM_NUM_MMU_PAGES];
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int nvcpus;
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struct kvm_vcpu vcpus[KVM_MAX_VCPUS];
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struct kvm_vcpu *vcpus[KVM_MAX_VCPUS];
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int memory_config_version;
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int busy;
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unsigned long rmap_overflow;
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@ -428,7 +425,8 @@ struct kvm_arch_ops {
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int (*hardware_setup)(void); /* __init */
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void (*hardware_unsetup)(void); /* __exit */
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int (*vcpu_create)(struct kvm_vcpu *vcpu);
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/* Create, but do not attach this VCPU */
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struct kvm_vcpu *(*vcpu_create)(struct kvm *kvm, unsigned id);
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void (*vcpu_free)(struct kvm_vcpu *vcpu);
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void (*vcpu_load)(struct kvm_vcpu *vcpu);
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@ -470,7 +468,6 @@ struct kvm_arch_ops {
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void (*inject_gp)(struct kvm_vcpu *vcpu, unsigned err_code);
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int (*run)(struct kvm_vcpu *vcpu, struct kvm_run *run);
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int (*vcpu_setup)(struct kvm_vcpu *vcpu);
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void (*skip_emulated_instruction)(struct kvm_vcpu *vcpu);
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void (*patch_hypercall)(struct kvm_vcpu *vcpu,
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unsigned char *hypercall_addr);
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@ -481,6 +478,9 @@ extern struct kvm_arch_ops *kvm_arch_ops;
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#define kvm_printf(kvm, fmt ...) printk(KERN_DEBUG fmt)
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#define vcpu_printf(vcpu, fmt...) kvm_printf(vcpu->kvm, fmt)
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int kvm_vcpu_init(struct kvm_vcpu *vcpu, struct kvm *kvm, unsigned id);
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void kvm_vcpu_uninit(struct kvm_vcpu *vcpu);
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int kvm_init_arch(struct kvm_arch_ops *ops, struct module *module);
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void kvm_exit_arch(void);
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@ -266,8 +266,10 @@ void kvm_flush_remote_tlbs(struct kvm *kvm)
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atomic_set(&completed, 0);
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cpus_clear(cpus);
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needed = 0;
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for (i = 0; i < kvm->nvcpus; ++i) {
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vcpu = &kvm->vcpus[i];
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for (i = 0; i < KVM_MAX_VCPUS; ++i) {
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vcpu = kvm->vcpus[i];
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if (!vcpu)
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continue;
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if (test_and_set_bit(KVM_TLB_FLUSH, &vcpu->requests))
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continue;
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cpu = vcpu->cpu;
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@ -291,10 +293,61 @@ void kvm_flush_remote_tlbs(struct kvm *kvm)
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}
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}
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int kvm_vcpu_init(struct kvm_vcpu *vcpu, struct kvm *kvm, unsigned id)
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{
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struct page *page;
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int r;
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mutex_init(&vcpu->mutex);
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vcpu->cpu = -1;
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vcpu->mmu.root_hpa = INVALID_PAGE;
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vcpu->kvm = kvm;
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vcpu->vcpu_id = id;
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page = alloc_page(GFP_KERNEL | __GFP_ZERO);
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if (!page) {
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r = -ENOMEM;
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goto fail;
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}
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vcpu->run = page_address(page);
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page = alloc_page(GFP_KERNEL | __GFP_ZERO);
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if (!page) {
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r = -ENOMEM;
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goto fail_free_run;
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}
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vcpu->pio_data = page_address(page);
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vcpu->host_fx_image = (char*)ALIGN((hva_t)vcpu->fx_buf,
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FX_IMAGE_ALIGN);
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vcpu->guest_fx_image = vcpu->host_fx_image + FX_IMAGE_SIZE;
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r = kvm_mmu_create(vcpu);
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if (r < 0)
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goto fail_free_pio_data;
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return 0;
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fail_free_pio_data:
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free_page((unsigned long)vcpu->pio_data);
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fail_free_run:
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free_page((unsigned long)vcpu->run);
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fail:
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return -ENOMEM;
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}
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EXPORT_SYMBOL_GPL(kvm_vcpu_init);
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void kvm_vcpu_uninit(struct kvm_vcpu *vcpu)
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{
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kvm_mmu_destroy(vcpu);
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free_page((unsigned long)vcpu->pio_data);
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free_page((unsigned long)vcpu->run);
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}
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EXPORT_SYMBOL_GPL(kvm_vcpu_uninit);
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static struct kvm *kvm_create_vm(void)
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{
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struct kvm *kvm = kzalloc(sizeof(struct kvm), GFP_KERNEL);
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int i;
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if (!kvm)
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return ERR_PTR(-ENOMEM);
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@ -303,14 +356,6 @@ static struct kvm *kvm_create_vm(void)
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spin_lock_init(&kvm->lock);
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INIT_LIST_HEAD(&kvm->active_mmu_pages);
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kvm_io_bus_init(&kvm->mmio_bus);
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for (i = 0; i < KVM_MAX_VCPUS; ++i) {
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struct kvm_vcpu *vcpu = &kvm->vcpus[i];
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mutex_init(&vcpu->mutex);
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vcpu->cpu = -1;
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vcpu->kvm = kvm;
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vcpu->mmu.root_hpa = INVALID_PAGE;
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}
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spin_lock(&kvm_lock);
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list_add(&kvm->vm_list, &vm_list);
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spin_unlock(&kvm_lock);
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@ -367,30 +412,11 @@ static void free_pio_guest_pages(struct kvm_vcpu *vcpu)
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static void kvm_unload_vcpu_mmu(struct kvm_vcpu *vcpu)
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{
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if (!vcpu->valid)
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return;
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vcpu_load(vcpu);
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kvm_mmu_unload(vcpu);
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vcpu_put(vcpu);
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}
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static void kvm_free_vcpu(struct kvm_vcpu *vcpu)
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{
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if (!vcpu->valid)
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return;
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vcpu_load(vcpu);
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kvm_mmu_destroy(vcpu);
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vcpu_put(vcpu);
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kvm_arch_ops->vcpu_free(vcpu);
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free_page((unsigned long)vcpu->run);
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vcpu->run = NULL;
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free_page((unsigned long)vcpu->pio_data);
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vcpu->pio_data = NULL;
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free_pio_guest_pages(vcpu);
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}
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static void kvm_free_vcpus(struct kvm *kvm)
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{
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unsigned int i;
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@ -399,9 +425,15 @@ static void kvm_free_vcpus(struct kvm *kvm)
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* Unpin any mmu pages first.
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*/
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for (i = 0; i < KVM_MAX_VCPUS; ++i)
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kvm_unload_vcpu_mmu(&kvm->vcpus[i]);
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for (i = 0; i < KVM_MAX_VCPUS; ++i)
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kvm_free_vcpu(&kvm->vcpus[i]);
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if (kvm->vcpus[i])
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kvm_unload_vcpu_mmu(kvm->vcpus[i]);
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for (i = 0; i < KVM_MAX_VCPUS; ++i) {
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if (kvm->vcpus[i]) {
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kvm_arch_ops->vcpu_free(kvm->vcpus[i]);
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kvm->vcpus[i] = NULL;
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}
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}
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}
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static int kvm_dev_release(struct inode *inode, struct file *filp)
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@ -2372,77 +2404,47 @@ static int kvm_vm_ioctl_create_vcpu(struct kvm *kvm, int n)
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{
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int r;
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struct kvm_vcpu *vcpu;
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struct page *page;
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r = -EINVAL;
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if (!valid_vcpu(n))
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goto out;
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return -EINVAL;
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vcpu = &kvm->vcpus[n];
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vcpu->vcpu_id = n;
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vcpu = kvm_arch_ops->vcpu_create(kvm, n);
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if (IS_ERR(vcpu))
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return PTR_ERR(vcpu);
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mutex_lock(&vcpu->mutex);
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if (vcpu->valid) {
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mutex_unlock(&vcpu->mutex);
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return -EEXIST;
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}
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page = alloc_page(GFP_KERNEL | __GFP_ZERO);
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r = -ENOMEM;
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if (!page)
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goto out_unlock;
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vcpu->run = page_address(page);
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page = alloc_page(GFP_KERNEL | __GFP_ZERO);
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r = -ENOMEM;
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if (!page)
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goto out_free_run;
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vcpu->pio_data = page_address(page);
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vcpu->host_fx_image = (char*)ALIGN((hva_t)vcpu->fx_buf,
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FX_IMAGE_ALIGN);
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vcpu->guest_fx_image = vcpu->host_fx_image + FX_IMAGE_SIZE;
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vcpu->cr0 = 0x10;
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r = kvm_arch_ops->vcpu_create(vcpu);
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if (r < 0)
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goto out_free_vcpus;
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r = kvm_mmu_create(vcpu);
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if (r < 0)
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goto out_free_vcpus;
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kvm_arch_ops->vcpu_load(vcpu);
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vcpu_load(vcpu);
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r = kvm_mmu_setup(vcpu);
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if (r >= 0)
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r = kvm_arch_ops->vcpu_setup(vcpu);
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vcpu_put(vcpu);
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if (r < 0)
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goto out_free_vcpus;
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goto free_vcpu;
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spin_lock(&kvm->lock);
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if (kvm->vcpus[n]) {
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r = -EEXIST;
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spin_unlock(&kvm->lock);
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goto mmu_unload;
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}
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kvm->vcpus[n] = vcpu;
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spin_unlock(&kvm->lock);
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/* Now it's all set up, let userspace reach it */
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r = create_vcpu_fd(vcpu);
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if (r < 0)
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goto out_free_vcpus;
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spin_lock(&kvm_lock);
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if (n >= kvm->nvcpus)
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kvm->nvcpus = n + 1;
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spin_unlock(&kvm_lock);
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vcpu->valid = 1;
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goto unlink;
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return r;
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out_free_vcpus:
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kvm_free_vcpu(vcpu);
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out_free_run:
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free_page((unsigned long)vcpu->run);
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vcpu->run = NULL;
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out_unlock:
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mutex_unlock(&vcpu->mutex);
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out:
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unlink:
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spin_lock(&kvm->lock);
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kvm->vcpus[n] = NULL;
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spin_unlock(&kvm->lock);
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mmu_unload:
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vcpu_load(vcpu);
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kvm_mmu_unload(vcpu);
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vcpu_put(vcpu);
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free_vcpu:
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kvm_arch_ops->vcpu_free(vcpu);
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return r;
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}
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@ -2935,9 +2937,12 @@ static void decache_vcpus_on_cpu(int cpu)
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int i;
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spin_lock(&kvm_lock);
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list_for_each_entry(vm, &vm_list, vm_list)
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list_for_each_entry(vm, &vm_list, vm_list) {
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spin_lock(&vm->lock);
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for (i = 0; i < KVM_MAX_VCPUS; ++i) {
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vcpu = &vm->vcpus[i];
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vcpu = vm->vcpus[i];
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if (!vcpu)
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continue;
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/*
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* If the vcpu is locked, then it is running on some
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* other cpu and therefore it is not cached on the
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@ -2954,6 +2959,8 @@ static void decache_vcpus_on_cpu(int cpu)
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mutex_unlock(&vcpu->mutex);
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}
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}
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spin_unlock(&vm->lock);
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}
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spin_unlock(&kvm_lock);
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}
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@ -3078,8 +3085,9 @@ static u64 stat_get(void *_offset)
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spin_lock(&kvm_lock);
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list_for_each_entry(kvm, &vm_list, vm_list)
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for (i = 0; i < KVM_MAX_VCPUS; ++i) {
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vcpu = &kvm->vcpus[i];
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total += *(u32 *)((void *)vcpu + offset);
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vcpu = kvm->vcpus[i];
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if (vcpu)
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total += *(u32 *)((void *)vcpu + offset);
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}
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spin_unlock(&kvm_lock);
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return total;
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@ -23,7 +23,7 @@ static const u32 host_save_user_msrs[] = {
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struct kvm_vcpu;
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struct vcpu_svm {
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struct kvm_vcpu *vcpu;
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struct kvm_vcpu vcpu;
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struct vmcb *vmcb;
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unsigned long vmcb_pa;
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struct svm_cpu_data *svm_data;
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@ -51,7 +51,7 @@ MODULE_LICENSE("GPL");
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static inline struct vcpu_svm *to_svm(struct kvm_vcpu *vcpu)
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{
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return (struct vcpu_svm*)vcpu->_priv;
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return container_of(vcpu, struct vcpu_svm, vcpu);
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}
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unsigned long iopm_base;
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@ -466,11 +466,6 @@ static void init_sys_seg(struct vmcb_seg *seg, uint32_t type)
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seg->base = 0;
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}
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static int svm_vcpu_setup(struct kvm_vcpu *vcpu)
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{
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return 0;
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}
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static void init_vmcb(struct vmcb *vmcb)
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{
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struct vmcb_control_area *control = &vmcb->control;
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@ -576,19 +571,27 @@ static void init_vmcb(struct vmcb *vmcb)
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/* rdx = ?? */
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}
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static int svm_create_vcpu(struct kvm_vcpu *vcpu)
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static struct kvm_vcpu *svm_create_vcpu(struct kvm *kvm, unsigned int id)
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{
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struct vcpu_svm *svm;
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struct page *page;
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int r;
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int err;
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|
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r = -ENOMEM;
|
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svm = kzalloc(sizeof *svm, GFP_KERNEL);
|
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if (!svm)
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goto out1;
|
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if (!svm) {
|
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err = -ENOMEM;
|
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goto out;
|
||||
}
|
||||
|
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err = kvm_vcpu_init(&svm->vcpu, kvm, id);
|
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if (err)
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goto free_svm;
|
||||
|
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page = alloc_page(GFP_KERNEL);
|
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if (!page)
|
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goto out2;
|
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if (!page) {
|
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err = -ENOMEM;
|
||||
goto uninit;
|
||||
}
|
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|
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svm->vmcb = page_address(page);
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clear_page(svm->vmcb);
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|
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@ -597,33 +600,29 @@ static int svm_create_vcpu(struct kvm_vcpu *vcpu)
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memset(svm->db_regs, 0, sizeof(svm->db_regs));
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||||
init_vmcb(svm->vmcb);
|
||||
|
||||
svm->vcpu = vcpu;
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vcpu->_priv = svm;
|
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fx_init(&svm->vcpu);
|
||||
svm->vcpu.fpu_active = 1;
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svm->vcpu.apic_base = 0xfee00000 | MSR_IA32_APICBASE_ENABLE;
|
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if (svm->vcpu.vcpu_id == 0)
|
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svm->vcpu.apic_base |= MSR_IA32_APICBASE_BSP;
|
||||
|
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fx_init(vcpu);
|
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vcpu->fpu_active = 1;
|
||||
vcpu->apic_base = 0xfee00000 | MSR_IA32_APICBASE_ENABLE;
|
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if (vcpu->vcpu_id == 0)
|
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vcpu->apic_base |= MSR_IA32_APICBASE_BSP;
|
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return &svm->vcpu;
|
||||
|
||||
return 0;
|
||||
|
||||
out2:
|
||||
uninit:
|
||||
kvm_vcpu_uninit(&svm->vcpu);
|
||||
free_svm:
|
||||
kfree(svm);
|
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out1:
|
||||
return r;
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||||
out:
|
||||
return ERR_PTR(err);
|
||||
}
|
||||
|
||||
static void svm_free_vcpu(struct kvm_vcpu *vcpu)
|
||||
{
|
||||
struct vcpu_svm *svm = to_svm(vcpu);
|
||||
|
||||
if (!svm)
|
||||
return;
|
||||
if (svm->vmcb)
|
||||
__free_page(pfn_to_page(svm->vmcb_pa >> PAGE_SHIFT));
|
||||
__free_page(pfn_to_page(svm->vmcb_pa >> PAGE_SHIFT));
|
||||
kvm_vcpu_uninit(vcpu);
|
||||
kfree(svm);
|
||||
vcpu->_priv = NULL;
|
||||
}
|
||||
|
||||
static void svm_vcpu_load(struct kvm_vcpu *vcpu)
|
||||
|
|
@ -1591,34 +1590,33 @@ again:
|
|||
#endif
|
||||
|
||||
#ifdef CONFIG_X86_64
|
||||
"mov %c[rbx](%[vcpu]), %%rbx \n\t"
|
||||
"mov %c[rcx](%[vcpu]), %%rcx \n\t"
|
||||
"mov %c[rdx](%[vcpu]), %%rdx \n\t"
|
||||
"mov %c[rsi](%[vcpu]), %%rsi \n\t"
|
||||
"mov %c[rdi](%[vcpu]), %%rdi \n\t"
|
||||
"mov %c[rbp](%[vcpu]), %%rbp \n\t"
|
||||
"mov %c[r8](%[vcpu]), %%r8 \n\t"
|
||||
"mov %c[r9](%[vcpu]), %%r9 \n\t"
|
||||
"mov %c[r10](%[vcpu]), %%r10 \n\t"
|
||||
"mov %c[r11](%[vcpu]), %%r11 \n\t"
|
||||
"mov %c[r12](%[vcpu]), %%r12 \n\t"
|
||||
"mov %c[r13](%[vcpu]), %%r13 \n\t"
|
||||
"mov %c[r14](%[vcpu]), %%r14 \n\t"
|
||||
"mov %c[r15](%[vcpu]), %%r15 \n\t"
|
||||
"mov %c[rbx](%[svm]), %%rbx \n\t"
|
||||
"mov %c[rcx](%[svm]), %%rcx \n\t"
|
||||
"mov %c[rdx](%[svm]), %%rdx \n\t"
|
||||
"mov %c[rsi](%[svm]), %%rsi \n\t"
|
||||
"mov %c[rdi](%[svm]), %%rdi \n\t"
|
||||
"mov %c[rbp](%[svm]), %%rbp \n\t"
|
||||
"mov %c[r8](%[svm]), %%r8 \n\t"
|
||||
"mov %c[r9](%[svm]), %%r9 \n\t"
|
||||
"mov %c[r10](%[svm]), %%r10 \n\t"
|
||||
"mov %c[r11](%[svm]), %%r11 \n\t"
|
||||
"mov %c[r12](%[svm]), %%r12 \n\t"
|
||||
"mov %c[r13](%[svm]), %%r13 \n\t"
|
||||
"mov %c[r14](%[svm]), %%r14 \n\t"
|
||||
"mov %c[r15](%[svm]), %%r15 \n\t"
|
||||
#else
|
||||
"mov %c[rbx](%[vcpu]), %%ebx \n\t"
|
||||
"mov %c[rcx](%[vcpu]), %%ecx \n\t"
|
||||
"mov %c[rdx](%[vcpu]), %%edx \n\t"
|
||||
"mov %c[rsi](%[vcpu]), %%esi \n\t"
|
||||
"mov %c[rdi](%[vcpu]), %%edi \n\t"
|
||||
"mov %c[rbp](%[vcpu]), %%ebp \n\t"
|
||||
"mov %c[rbx](%[svm]), %%ebx \n\t"
|
||||
"mov %c[rcx](%[svm]), %%ecx \n\t"
|
||||
"mov %c[rdx](%[svm]), %%edx \n\t"
|
||||
"mov %c[rsi](%[svm]), %%esi \n\t"
|
||||
"mov %c[rdi](%[svm]), %%edi \n\t"
|
||||
"mov %c[rbp](%[svm]), %%ebp \n\t"
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_X86_64
|
||||
/* Enter guest mode */
|
||||
"push %%rax \n\t"
|
||||
"mov %c[svm](%[vcpu]), %%rax \n\t"
|
||||
"mov %c[vmcb](%%rax), %%rax \n\t"
|
||||
"mov %c[vmcb](%[svm]), %%rax \n\t"
|
||||
SVM_VMLOAD "\n\t"
|
||||
SVM_VMRUN "\n\t"
|
||||
SVM_VMSAVE "\n\t"
|
||||
|
|
@ -1626,8 +1624,7 @@ again:
|
|||
#else
|
||||
/* Enter guest mode */
|
||||
"push %%eax \n\t"
|
||||
"mov %c[svm](%[vcpu]), %%eax \n\t"
|
||||
"mov %c[vmcb](%%eax), %%eax \n\t"
|
||||
"mov %c[vmcb](%[svm]), %%eax \n\t"
|
||||
SVM_VMLOAD "\n\t"
|
||||
SVM_VMRUN "\n\t"
|
||||
SVM_VMSAVE "\n\t"
|
||||
|
|
@ -1636,55 +1633,54 @@ again:
|
|||
|
||||
/* Save guest registers, load host registers */
|
||||
#ifdef CONFIG_X86_64
|
||||
"mov %%rbx, %c[rbx](%[vcpu]) \n\t"
|
||||
"mov %%rcx, %c[rcx](%[vcpu]) \n\t"
|
||||
"mov %%rdx, %c[rdx](%[vcpu]) \n\t"
|
||||
"mov %%rsi, %c[rsi](%[vcpu]) \n\t"
|
||||
"mov %%rdi, %c[rdi](%[vcpu]) \n\t"
|
||||
"mov %%rbp, %c[rbp](%[vcpu]) \n\t"
|
||||
"mov %%r8, %c[r8](%[vcpu]) \n\t"
|
||||
"mov %%r9, %c[r9](%[vcpu]) \n\t"
|
||||
"mov %%r10, %c[r10](%[vcpu]) \n\t"
|
||||
"mov %%r11, %c[r11](%[vcpu]) \n\t"
|
||||
"mov %%r12, %c[r12](%[vcpu]) \n\t"
|
||||
"mov %%r13, %c[r13](%[vcpu]) \n\t"
|
||||
"mov %%r14, %c[r14](%[vcpu]) \n\t"
|
||||
"mov %%r15, %c[r15](%[vcpu]) \n\t"
|
||||
"mov %%rbx, %c[rbx](%[svm]) \n\t"
|
||||
"mov %%rcx, %c[rcx](%[svm]) \n\t"
|
||||
"mov %%rdx, %c[rdx](%[svm]) \n\t"
|
||||
"mov %%rsi, %c[rsi](%[svm]) \n\t"
|
||||
"mov %%rdi, %c[rdi](%[svm]) \n\t"
|
||||
"mov %%rbp, %c[rbp](%[svm]) \n\t"
|
||||
"mov %%r8, %c[r8](%[svm]) \n\t"
|
||||
"mov %%r9, %c[r9](%[svm]) \n\t"
|
||||
"mov %%r10, %c[r10](%[svm]) \n\t"
|
||||
"mov %%r11, %c[r11](%[svm]) \n\t"
|
||||
"mov %%r12, %c[r12](%[svm]) \n\t"
|
||||
"mov %%r13, %c[r13](%[svm]) \n\t"
|
||||
"mov %%r14, %c[r14](%[svm]) \n\t"
|
||||
"mov %%r15, %c[r15](%[svm]) \n\t"
|
||||
|
||||
"pop %%r15; pop %%r14; pop %%r13; pop %%r12;"
|
||||
"pop %%r11; pop %%r10; pop %%r9; pop %%r8;"
|
||||
"pop %%rbp; pop %%rdi; pop %%rsi;"
|
||||
"pop %%rdx; pop %%rcx; pop %%rbx; \n\t"
|
||||
#else
|
||||
"mov %%ebx, %c[rbx](%[vcpu]) \n\t"
|
||||
"mov %%ecx, %c[rcx](%[vcpu]) \n\t"
|
||||
"mov %%edx, %c[rdx](%[vcpu]) \n\t"
|
||||
"mov %%esi, %c[rsi](%[vcpu]) \n\t"
|
||||
"mov %%edi, %c[rdi](%[vcpu]) \n\t"
|
||||
"mov %%ebp, %c[rbp](%[vcpu]) \n\t"
|
||||
"mov %%ebx, %c[rbx](%[svm]) \n\t"
|
||||
"mov %%ecx, %c[rcx](%[svm]) \n\t"
|
||||
"mov %%edx, %c[rdx](%[svm]) \n\t"
|
||||
"mov %%esi, %c[rsi](%[svm]) \n\t"
|
||||
"mov %%edi, %c[rdi](%[svm]) \n\t"
|
||||
"mov %%ebp, %c[rbp](%[svm]) \n\t"
|
||||
|
||||
"pop %%ebp; pop %%edi; pop %%esi;"
|
||||
"pop %%edx; pop %%ecx; pop %%ebx; \n\t"
|
||||
#endif
|
||||
:
|
||||
: [vcpu]"a"(vcpu),
|
||||
[svm]"i"(offsetof(struct kvm_vcpu, _priv)),
|
||||
: [svm]"a"(svm),
|
||||
[vmcb]"i"(offsetof(struct vcpu_svm, vmcb_pa)),
|
||||
[rbx]"i"(offsetof(struct kvm_vcpu, regs[VCPU_REGS_RBX])),
|
||||
[rcx]"i"(offsetof(struct kvm_vcpu, regs[VCPU_REGS_RCX])),
|
||||
[rdx]"i"(offsetof(struct kvm_vcpu, regs[VCPU_REGS_RDX])),
|
||||
[rsi]"i"(offsetof(struct kvm_vcpu, regs[VCPU_REGS_RSI])),
|
||||
[rdi]"i"(offsetof(struct kvm_vcpu, regs[VCPU_REGS_RDI])),
|
||||
[rbp]"i"(offsetof(struct kvm_vcpu, regs[VCPU_REGS_RBP]))
|
||||
[rbx]"i"(offsetof(struct vcpu_svm,vcpu.regs[VCPU_REGS_RBX])),
|
||||
[rcx]"i"(offsetof(struct vcpu_svm,vcpu.regs[VCPU_REGS_RCX])),
|
||||
[rdx]"i"(offsetof(struct vcpu_svm,vcpu.regs[VCPU_REGS_RDX])),
|
||||
[rsi]"i"(offsetof(struct vcpu_svm,vcpu.regs[VCPU_REGS_RSI])),
|
||||
[rdi]"i"(offsetof(struct vcpu_svm,vcpu.regs[VCPU_REGS_RDI])),
|
||||
[rbp]"i"(offsetof(struct vcpu_svm,vcpu.regs[VCPU_REGS_RBP]))
|
||||
#ifdef CONFIG_X86_64
|
||||
,[r8 ]"i"(offsetof(struct kvm_vcpu, regs[VCPU_REGS_R8 ])),
|
||||
[r9 ]"i"(offsetof(struct kvm_vcpu, regs[VCPU_REGS_R9 ])),
|
||||
[r10]"i"(offsetof(struct kvm_vcpu, regs[VCPU_REGS_R10])),
|
||||
[r11]"i"(offsetof(struct kvm_vcpu, regs[VCPU_REGS_R11])),
|
||||
[r12]"i"(offsetof(struct kvm_vcpu, regs[VCPU_REGS_R12])),
|
||||
[r13]"i"(offsetof(struct kvm_vcpu, regs[VCPU_REGS_R13])),
|
||||
[r14]"i"(offsetof(struct kvm_vcpu, regs[VCPU_REGS_R14])),
|
||||
[r15]"i"(offsetof(struct kvm_vcpu, regs[VCPU_REGS_R15]))
|
||||
,[r8 ]"i"(offsetof(struct vcpu_svm,vcpu.regs[VCPU_REGS_R8])),
|
||||
[r9 ]"i"(offsetof(struct vcpu_svm,vcpu.regs[VCPU_REGS_R9 ])),
|
||||
[r10]"i"(offsetof(struct vcpu_svm,vcpu.regs[VCPU_REGS_R10])),
|
||||
[r11]"i"(offsetof(struct vcpu_svm,vcpu.regs[VCPU_REGS_R11])),
|
||||
[r12]"i"(offsetof(struct vcpu_svm,vcpu.regs[VCPU_REGS_R12])),
|
||||
[r13]"i"(offsetof(struct vcpu_svm,vcpu.regs[VCPU_REGS_R13])),
|
||||
[r14]"i"(offsetof(struct vcpu_svm,vcpu.regs[VCPU_REGS_R14])),
|
||||
[r15]"i"(offsetof(struct vcpu_svm,vcpu.regs[VCPU_REGS_R15]))
|
||||
#endif
|
||||
: "cc", "memory" );
|
||||
|
||||
|
|
@ -1865,7 +1861,6 @@ static struct kvm_arch_ops svm_arch_ops = {
|
|||
|
||||
.run = svm_vcpu_run,
|
||||
.skip_emulated_instruction = skip_emulated_instruction,
|
||||
.vcpu_setup = svm_vcpu_setup,
|
||||
.patch_hypercall = svm_patch_hypercall,
|
||||
};
|
||||
|
||||
|
|
|
|||
|
|
@ -39,7 +39,7 @@ struct vmcs {
|
|||
};
|
||||
|
||||
struct vcpu_vmx {
|
||||
struct kvm_vcpu *vcpu;
|
||||
struct kvm_vcpu vcpu;
|
||||
int launched;
|
||||
struct kvm_msr_entry *guest_msrs;
|
||||
struct kvm_msr_entry *host_msrs;
|
||||
|
|
@ -60,7 +60,7 @@ struct vcpu_vmx {
|
|||
|
||||
static inline struct vcpu_vmx *to_vmx(struct kvm_vcpu *vcpu)
|
||||
{
|
||||
return (struct vcpu_vmx*)vcpu->_priv;
|
||||
return container_of(vcpu, struct vcpu_vmx, vcpu);
|
||||
}
|
||||
|
||||
static int init_rmode_tss(struct kvm *kvm);
|
||||
|
|
@ -2302,46 +2302,62 @@ static void vmx_free_vmcs(struct kvm_vcpu *vcpu)
|
|||
|
||||
static void vmx_free_vcpu(struct kvm_vcpu *vcpu)
|
||||
{
|
||||
struct vcpu_vmx *vmx = to_vmx(vcpu);
|
||||
|
||||
vmx_free_vmcs(vcpu);
|
||||
kfree(vmx->host_msrs);
|
||||
kfree(vmx->guest_msrs);
|
||||
kvm_vcpu_uninit(vcpu);
|
||||
kfree(vmx);
|
||||
}
|
||||
|
||||
static int vmx_create_vcpu(struct kvm_vcpu *vcpu)
|
||||
static struct kvm_vcpu *vmx_create_vcpu(struct kvm *kvm, unsigned int id)
|
||||
{
|
||||
struct vcpu_vmx *vmx;
|
||||
int err;
|
||||
struct vcpu_vmx *vmx = kzalloc(sizeof(*vmx), GFP_KERNEL);
|
||||
|
||||
vmx = kzalloc(sizeof(*vmx), GFP_KERNEL);
|
||||
if (!vmx)
|
||||
return -ENOMEM;
|
||||
return ERR_PTR(-ENOMEM);
|
||||
|
||||
err = kvm_vcpu_init(&vmx->vcpu, kvm, id);
|
||||
if (err)
|
||||
goto free_vcpu;
|
||||
|
||||
vmx->guest_msrs = kmalloc(PAGE_SIZE, GFP_KERNEL);
|
||||
if (!vmx->guest_msrs)
|
||||
goto out_free;
|
||||
if (!vmx->guest_msrs) {
|
||||
err = -ENOMEM;
|
||||
goto uninit_vcpu;
|
||||
}
|
||||
|
||||
vmx->host_msrs = kmalloc(PAGE_SIZE, GFP_KERNEL);
|
||||
if (!vmx->host_msrs)
|
||||
goto out_free;
|
||||
goto free_guest_msrs;
|
||||
|
||||
vmx->vmcs = alloc_vmcs();
|
||||
if (!vmx->vmcs)
|
||||
goto out_free;
|
||||
goto free_msrs;
|
||||
|
||||
vmcs_clear(vmx->vmcs);
|
||||
|
||||
vmx->vcpu = vcpu;
|
||||
vcpu->_priv = vmx;
|
||||
vmx_vcpu_load(&vmx->vcpu);
|
||||
err = vmx_vcpu_setup(&vmx->vcpu);
|
||||
vmx_vcpu_put(&vmx->vcpu);
|
||||
if (err)
|
||||
goto free_vmcs;
|
||||
|
||||
return 0;
|
||||
|
||||
out_free:
|
||||
if (vmx->host_msrs)
|
||||
kfree(vmx->host_msrs);
|
||||
|
||||
if (vmx->guest_msrs)
|
||||
kfree(vmx->guest_msrs);
|
||||
return &vmx->vcpu;
|
||||
|
||||
free_vmcs:
|
||||
free_vmcs(vmx->vmcs);
|
||||
free_msrs:
|
||||
kfree(vmx->host_msrs);
|
||||
free_guest_msrs:
|
||||
kfree(vmx->guest_msrs);
|
||||
uninit_vcpu:
|
||||
kvm_vcpu_uninit(&vmx->vcpu);
|
||||
free_vcpu:
|
||||
kfree(vmx);
|
||||
|
||||
return -ENOMEM;
|
||||
return ERR_PTR(err);
|
||||
}
|
||||
|
||||
static struct kvm_arch_ops vmx_arch_ops = {
|
||||
|
|
@ -2389,7 +2405,6 @@ static struct kvm_arch_ops vmx_arch_ops = {
|
|||
|
||||
.run = vmx_vcpu_run,
|
||||
.skip_emulated_instruction = skip_emulated_instruction,
|
||||
.vcpu_setup = vmx_vcpu_setup,
|
||||
.patch_hypercall = vmx_patch_hypercall,
|
||||
};
|
||||
|
||||
|
|
|
|||
Загрузка…
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